Why Can’t I Open MPO Files?

Computer programs are compatible with a variety of different file extensions, and many extensions work with multiple programs. There are several reasons why you may not be able to open MPO files on your computer. If you double-click the file and nothing happens, or an error message appears, consider the following possibilities.

You Don’t Have the Right Program

There are specific computer programs that are compatible with MPO files, and you may not have one installed on your computer. The most common programs are Sheffield Dictionary File, Multi-Picture Object Multi-Picture Object, and STOIK Imagic. Try installing one or more of these programs and see if you can open the file. You can download these programs from either the developers’ websites, the Microsoft Store / Apple App Store, or popular download portals.

You’re Not Sure of the File Type

Knowing the file type can help you open MPO files. Different file extensions can be associated with different types of files. Raster Image Files usually use the MPO extension. You might have a program installed on your computer that is designed to open this type of file. A good first step is trying to open the file in that program.

If you don’t know what type of file the MPO file is, finding this information is simple. Please follow the instructions below depending on the type of operating system you are using.

On a Windows Computer:

Right-click the file icon.

Select “Properties” from the drop-down menu.

Find the file type listed under “Type of File”.

On a Mac:

Right-click on the file icon.

Select “More Info” from the drop-down menu.

Look for the file type listed under “Kind”.

You Need Help From the Developer

If no programs will open the MPO file, you can ask software developers for help. They know their software better than anyone, and they might be able to explain why you can’t open the file.
See the chart below to find the developers for the most common programs used to open MPO files.

Software

Developer

Sheffield Dictionary File

Microsoft Developer

Multi-Picture Object Multi-Picture Object

CIPA

STOIK Imagic

Stoik Imaging

You Need a Universal File Viewer

A universal file viewer, like File Magic (Download), is a tool that you can use to open a file when no other program will work. They can open many different file types, depending on the format. However, some files are incompatible with universal file viewers and will only open in binary file format. If none of the other options listed work, try a universal file viewer to open your MPO file.